Ambient Air Quality of Bongaigaon for July 2008

Location
Type of Area
Sulphur dioxide
Nitrogen dioxide
Respirable Suspended Particulate Matter
Suspended Particulate Matter
n
Max.
Avg.
Std. Dev.
n

Max.

Avg.

Std. Dev.
n
Max.
Avg.
Std. Dev.
n
Max.
Avg. Std. Dev.
Barpara Office Building, Bongaigaon
R
9 7.50 4.39 2.18 9 12.25 10.03 3.67 9 42.00 32.00 8.27 9 78.00 57.56

15.95

Campus of Oil India Ltd. PS-6, Bongaigaon
R
9 6.25 4.50 2.08 9 14.50 9.19 4.04 9 43.50 33.72 8.78 9 81.50 61.83

16.34

Note:- R – Residential and Other Areas

Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.


Ambient Air Quality of Bongaigaon for August 2008

Location
Type of Area
Sulphur dioxide
Nitrogen dioxide
Respirable Suspended Particulate Matter
Suspended Particulate Matter
n
Max.
Avg.
Std. Dev.
n

Max.

Avg.

Std. Dev.
n
Max.
Avg.
Std. Dev.
n
Max.
Avg. Std. Dev.
Barpara Office Building, Bongaigaon
R
9 8.00 4.93 2.89 9 15.75 10.00 4.19 9 49.50 30.36 11.38 9 80.50 54.29 18.31
Campus of Oil India Ltd. PS-6, Bongaigaon
R
9 5.75 4.17 1.76 9 16.00 10.64 3.92 9 39.50 29.83 8.07 9 68.00 51.33

12.09

Note:- R – Residential and Other Areas

Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.


Ambient Air Quality of Bongaigaon for September 2008

Location
Type of Area
Sulphur dioxide
Nitrogen dioxide
Respirable Suspended Particulate Matter
Suspended Particulate Matter
n
Max.
Avg.
Std. Dev.
n

Max.

Avg.

Std. Dev.
n
Max.
Avg.
Std. Dev.
n
Max.
Avg. Std. Dev.
Barpara Office Building, Bongaigaon
R
9 7.50 5.39 1.96 9 16.25 10.79 4.57 9 48.50 33.56 12.09 9 90.50 57.72 22.15
Campus of Oil India Ltd. PS-6, Bongaigaon
R
9 6.25 4.03 1.87 9 17.00 9.68 4.80 9 140.50 67.56 51.87 9 209.50 103.50

76.45

Note:- R – Residential and Other Areas

Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.

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